Just Energy
Heat is the transfer of ___________ from one object to another.
thermal energy
Heating can occur by these (3)_______,_________, and___________.
conduction, convection and radiation.
The type of heat transfer in which air rises and falls in the atmosphere is called _________________?
Convection
When you add potential and kinetic energy of an object together you get _____________.
Mechanical Energy
The food we eat starts out as ___________ energy, then after we eat, it turns into _____________ energy and _____________ energy.
1st blank: Chemical energy
2nd and 3rd blank: heat energy and mechanical energy
What part of a rollercoaster represents kinetic energy?
when it is going down/ moving fast
In a glass of lemonade the ice begins to melt when the heat energy is transferred from the ice to the warmer lemonade. Which heat transfer is this an example of?
Conduction
How does a rollercoaster transform potential energy to kinetic energy?
It starts out at the top with potential energy and when it starts moving down a hill, it turns into kinetic energy.
When a atomic bomb is dropped on a country in a war, this type of energy is released
Nuclear energy
What is energy and what is it measured in?
Energy is the ability to cause change. Measured in joules (J)
What is the difference between potential and kinetic energy?
Potential energy is stored energy from an object's position/height and kinetic energy comes from being in motion/having speed.
Warmth coming from the fire place as you sit in front of it is an example of this type of heat transfer.
How do you know?
Radiation
You are not touching the fire and heat that comes from a fire is always radiation
Energy that flows through the lights in this classroom starts as ___________ energy and turns into _____________ energy and ____________ energy.
electrical energy
Turns into radiant and heat energy
What is the definition of energy transformation?
when energy changes from one form to another
A cell phone's energy starts from electrical energy when you plug it up to charge it, then it turns into what types of energy? (at least 2)
Ill take these answers: chemical, radiant, thermal, and sound energy
There's a truck and a small car going down the highway at 67 miles per hour. Which one has more Kinetic energy? How do you know?
The truck, it has more mass.
What is the energy transformation that occurs when turning on a battery-powered flashlight?
Chemical to electrical to light
Give an example of the law of conservation of energy. (not the definition)
Answers will vary.
What 2 things does potential energy depend on? Give an example of Potential energy.
Mass and Height
Examples will vary